Mode=REISER Menu: [Linux Reiser journaled File System]

Display a usage map for the currently selected disk or filesystem
A pseudo-graphical map of the disk or partition allocation is
displayed, showing the distribution of data over the object
This is also an indication for the amount of unused sectors in
the object, that are beneficial to 'SMART-SECTOR' optimizations
in imaging and cloning operations.
The percentage of used sectors are displayed as a percentage at
the end of the line, and a total usage percentage and size is
shown just after the map itself.
For filesystems that support resizing, the limits for resizing
are shown after the map itself.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

Make the currently selected PRIMARY the 'active' partition for MBR/BIOS boot

This will make the currently selected PRIMARY partition the
ACTIVE one for the disk.
There should only be a single active partition on every disk.
When the system starts, the BIOS will usually boot from
the ACTIVE partition on the first disk.
In IBM BMGR/LVM terms the active partition is called STARTABLE.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This will delete the partition that is currently selected to be
deleted from the partition-tables. This will result in the space
occupied by the partition becoming FREESPACE that can be used
again to create new partitions.
For primary partitions on LVM-systems, the related LVM-information
is cleared as well, to avoid consistency problems later when a new
partition is created at the same position.
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Press <F1> again for more help; Some options may require switching to 'Expert mode'

This will UNSELECT the current object/filesystem, and reselect a
whole physical disk, either the same disk as the partition was on,
or the first disk present in other cases.
This is a quick way to change to 'Mode=FDISK' and work on
disk-level issues
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Press <F1> again for more help; Some options may require switching to 'Expert mode'